Design:
Claron Style DPDS double acting piston seal is a 5 piece assembly consisting of a Nitrile Rubber sealing element supported by 2 thermoplastic elastomer headers with Acetal anti-extrusion bearing rings on the O.D. The complete assembly forms a highly robust sealing unit for use in high pressure applications where shock loads and pressure spikes are present. This seal is widely used in the mobile plant industry.
| Maximum Pressure | ||
| Max Speed Temp. Range m/s -30°C to 100°C |
||
| 0.50 325 Bar 0.15 600 Bar |
| NBR Rubber | ||||
| DIN | Hydraulic Fluid Description | °C | ||
| H | Mineral oil without additives | 100 | ||
| H-L | Mineral Fluid with anti corrosion and anti ageing additives | 100 | ||
| H-LP | Mineral oil as HL plus additives reducing wear, raising load | 100 | ||
| H-LPD | Mineral oil as H-LP but with detergents and dispersants | 100 | ||
| H-V | Mineral oil as H-LP plus improved viscosity temp. | 100 | ||
| HFA E | Emulsions of mineral oil in water. Water content 80-95% | 55 | ||
| HFA S | Synthetic oil in water. Water content 80-95% | 55 | ||
| HFB | Emulsions of water in mineral oil. Water content 40% | 60 | ||
| HFC | Aqueous polymer solutions. Water content 35% | 60 | ||
| HFD R | Phosphoric acid ester based | NS | ||
| HFD S | Chlorinated hydrocarbon based | NS | ||
| HFD T | Mixtures of HFD R and HFD S | NS | ||
| HEPG | Polyglycol based | NS | ||
| HETG | Vegetable Oil based | 60 | ||
| HEES | Fully synthetic ester based | NS | ||
Housing:
For surface finish and recommended lead in chamfers refer to the illustration below. For housing dimensions and machining tolerances refer to the catalogue page of selected seal. Refer to Appendix 4 for value of tolerance symbols.
Fitting:
Style DPDS is designed to be fitted onto a split piston as shown in the illustration below. The seal can be supplied split to ease fitting if required. For the seal to function correctly, it is important that care be taken in fitting the seal within its housing.
For a detailed checklist, refer to Appendix 3.
| Part Number | H 11 | h 10 js 10 | js 11 +0.6 +0.4 |
+0.2 -0.0 |
Min | Max. | |||||||||||
| ØD1 | Ød1 | Ød2 | Ød3 | L1 | L2 | S | C | R1 R2 | |||||||||
| DPDS 228165 | 58,00 | 42,00 | 51,10 | 56,00 | 32,00 | 9,52 | 8,00 | 4,00 | 0,40 | ||||||||
| DPDS 393314 | 100,00 | 80,00 | 92,60 | 97,50 | 35,00 | 9,52 | 10,00 | 5,00 | 0,40 | ||||||||
| DPDS 433354 | 110,00 | 90,00 | 102,60 | 107,40 | 35,00 | 9,52 | 10,00 | 5,00 | 0,40 | ||||||||
| DPDS 492393 | 125,00 | 100,00 | 116,80 | 122,30 | 45,00 | 12,70 | 12,50 | 6,50 | 0,40 | ||||||||
| Part Number | H 11 | h 10 js 10 | js11 +0.025 +0.015 |
+0.005 -0.000 |
Min | Max. | |||||||||||
| ØD1 | Ød1 | Ød2 | Ød3 | L1 | L2 | S | C | R1 R2 | |||||||||
| DPDS 362287 | 3,625 | 2,875 | 3,330 | 3,530 | 1,375 | 0,375 | 0,375 | 0,187 | 0,008 | ||||||||
| DPDS 400325 | 4,000 | 3,250 | 3,710 | 3,900 | 1,375 | 0,375 | 0,375 | 0,187 | 0,008 | ||||||||
| DPDS 450350 | 4,500 | 3,500 | 4,180 | 4,400 | 1,750 | 0,500 | 0,500 | 0,218 | 0,015 | ||||||||
| DPDS 500400 | 5,000 | 4,000 | 4,675 | 4,900 | 1,750 | 0,500 | 0,500 | 0,218 | 0,015 | ||||||||
| DPDS 600500 | 6,000 | 5,000 | 5,675 | 5,900 | 1,750 | 0,500 | 0,500 | 0,218 | 0,015 | ||||||||
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